Sanding device



SANDING DEVICE Filed Dec. 10, 1945 Inventor ALBERT G. NASH Patented Oct. 4, 1949 UNITED STATES PATENT OFFICE 2,483,554 SANDING DEVICE Albert George Nash, Gorham, Ontario, Canada Application December 10, 1945, Serial No. 634,017

Claims.

This invention relates to improvements in a sanding device for motor vehicles and the like and appertains particularly to an exhaust-impelled sand spray for affording better driving and/or braking traction for the vehicles ground wheels, that is instantly available to the operator.

An object of the invention is to provide a sanding device, operable from the drivers seat, for delivering sand or other granular substance to the front and/or rear of any or all of the vehicle's wheels.

A further object of the invention is to provide a sanding device having the sand box built about the exhaust line muifier and a valved connection between the exhaust pipe and the sand delivery tube whereby the operator at will can direct the exhaust through the said delivery tube to discharge a spray of sand.

A still further object of the invention is the provision of an improved sander characterized by structural simplicity, ease and efiiciency of operation, and low cost of construction and installation whereby the same is rendered commercially desirable.

To the accomplishment of these and related objects as shall become apparent as the description proceeds, the invention resides in the construction, combination and arrangement of parts as shall be hereinafter more fully described, illustrated in the accompanying drawings and pointed out in the claims hereunto appended.

The invention will be best understood and can be more clearly described when reference is had to the drawings forming a part of this disclosure, wherein like characters indicate like parts throughout the several views.

In the drawings:

Figure 1 is a side elevation of a motor car chassis embodying this invention;

Figure 2 is an elevation of the opposite side of the sand-box;

Figure 3 is a rear elevation;

Figure 4 is a longitudinal vertical section, with the exhaust-deflecting valve in operating position;

Figure 5 is a transverse section, as taken on line 5-5 of Figure 4;

Figure 6 is a plan; and

Figure '7 is an elevational detail, with part in section, of the nozzle through which the sand is sprayed.

The stripped chassis IU of a motor car having ground wheels II, is shown in Figure 1, as pro- 2 a muffler l3 from which an outlet exhaust pipe l4 extends.

A sand box [5 is built about the muiiler l3 and adjoining portion of the exhaust pipe I4 with its bottom It declining towards the rear. A sand delivery tube l1 connects with the exhaust pipe l4, branching oif therefrom within the said box IE and just to the rear of the muffler [3. In the instant embodiment, the connecting end of the tube l1 appears as a longitudinally flared mouth it with a companion cap piece l3 that together embrace and enclose a break 20 between spaced divisions Ma and Mb of the exhaust pipe. A butterfly valve 2| whose control mechanism will be later described operates in the T formed at the branch or juncture ofthe tube I! with the pipe M to direct the exhaust output of the mufller l3 through the direct route of the pipe I4 or via the sand delivery tube [1. Reaching to the rearwardly sloping bottom of the hopper-like sand box l5, the discharge tube I! bends backwards to pass outwards, substantially horizontally, through the bottom is and rear 22 of the box, exterior of which the said tube ofisets upwardly a short distance as at 23 to provide a trap or weir, thence forks to provide two passageways 24 and 24 that extend respectively to opposite sides of the vehicle and rounding rearwardly are provided with discharge nozzles 25 and 25, directed toward the traction surface of the adjacent wheels 26 and 26 respectively, being terminally provided with spray lips 2'! and 21'. Within the box I5 and just above the floor level thereof the rearwardly bent, horizontal part of the tube I! has an inlet opening 28 in its upper side through which sand in the box is drawn when the exhaust is deflected into the tube I! by the valve 2!. A clean-out plug 29 occurs in the lower side of this sand-trap reach of the discharge tube and a reinforcing bracket 30 is strapped across the underside of the tube.

The valve 2| is carried on a transverse horizontal shaft 3! that exterior of the sand box l5 has an arm 32 hanging downwards. The slotted rear end 33 of a control rod 34 slidingly engages the free end of the arm 32 whose forward end attaches to the lever 35 connected with the brake pedal 36 so that on application of the brakes of the car through the medium of the said brake pedal the control valve 2! is operated to spraysand on the roadway through the nozzles 25 and 25. For summer driving this mechanism may be disconnected if desired. An auxiliary or alternative valve control comprises a chain or cord 3?, at-

vided with an exhaust manifold l2 delivering to tached also to the arm 32 and operated by a 3 knob 38 on the dash 39. As is obvious, it is operated independently of the brake pedal control. A closing spring 40 extends from the shaft 3| to a suitable anchorage on the box l5. A filling neck 4|, with closure cap 42, is provided near the top at one side of the sand box.

In use, the exhaust of the vehicle engine passes outwards through the muffler l 3 and exhaust pipe H but when the brake pedal 36 is applied, or alternatively when sand is desired as *for starting traction the knob 38 on the dash is drawn out, the exhaust gases are deflected by the valve 2| through the ejector tube I1, drawing sand in through the opening 28 and blowing a spray of sand out the nozzles 25 and 25' into the path of the wheels. On release of the brake pedal or dash knob the valve closes again directing the flow of exhaust gases through the usual outlet.

in said tube exterior of said box, the two conduits The sand in the hopper box is always kept warm and dry and so flows easily yet spillage is prevented by the upward offset or weir.

From the foregoing description taken in connection with the accompanying drawings, it will be manifest that a sanding device is provided that will fulfill all the necessary requirements of such adevice but as many changes could be made in the above description and many apparently widely different embodiments of the invention maybe constructed within the scope of the appended claims without departing from the spirit or scope thereof, ,it is intended that all matters contained in the said accompanying specifica- 'tion and drawing, shall be interpreted as illustrative and not in a limitative or restrictive sense.

Having thus described the invention, what I claim as new and-desire to secure by Letters Patcut is:

1. A sanding device for motor vehicles comprising ,in combination, with the exhaust muffler and pipe, a sand discharge tube branched off said pipe, a valve controlling the flow of the exhaust alternatively through said pipe or said tube, a sand box surrounding said mufiler and the juncture of said pipe and tube, and a sand-entering opening insaid tube within said box.

2.. A sanding, device for motor vehicles comprising in oombination, with the exhaust muiiler and pipe, a sand box surrounding said mufiier and adjacent part of said pipe, a sand discharge tube branched off said pipe within said box, a valve in said pipe where the tube branches off, a sand intherefrom terminating in discharge nozzles in advance of the drive wheels of said vehicle, and a sand trap in said discharge tube between said intake opening and said fork.

4. A sanding device for motor vehicles comprising in combination, with the exhaust mufller and pipe, a hopper-like sand box surrounding said mufiler and the adjacent part .of said pipe having a sloping bottom declining to the rear, a sand discharge tube branched 011 said pipe extending to the bottom of said box near the rear then bending horizontal to run out the back thereof, valve means in said pipe for selectably deflecting the exhaust flow through said tube, a sand intake opening in the upperside of said horizontal piece of said tube Within said box and a spray nozzle on the outer end of said tube.

5. The combination with the structure set forth in claim 4 and wherein the muflier pipe is formed of two spaced pieces and the sand discharge tube branching ofi therefrom has a longitudinally flared mouth underlying the break between the spaced mufller pieces, of a complementary cap overlying the said mufller pipe break and together with the flared mouth of said tube enclosing the break in said mufiler pipe, and a butterfly control valve in the flaredmouth of said tube.

ALBERT GEORGE NASH.

REFERENCES CITED lfhe following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,235,410 Alheit et a1. July 3-1, 1917 1,850,795 Hofiman Mar. 22, 1932 

